recarbing old still cider

[thedude4]

The backround...I made a few batches of various types of ciders ( brown sugar, honey, ect) the long and short is they never carbed up. there a couple yrs old. I pull out a couple from time to time but I think they would be better bubbly. .could I try and keg them or would all that pouring cause some oxidation? I don't want to rebottle. Thoughs? Thanks in advance.